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EN
Some practices such as fertilisation and pesticide use are carried out in order to obtain high yields in agricultural production. However, as a result of these practices, agricultural pollutants may occur as a result of incorrect agricultural practices. Problems such as water pollution, air pollution, soil pollution, nutrient imbalance, salination in soils, eutrophication in waters, beneficial microorganisms in soils and damage to human and animal health occur due to faulty fertilisation and pesticide applications, misuse of agricultural soils, and inaccuracies in the disposal of plastic wastes. In this study, the literature on agricultural polluting factors was examined and it was aimed to raise awareness about agricultural pollution by explaining the harms of agricultural polluting factors to the environment and the health of living beings and by trying to offer solutions. Within the scope of this targeted awareness, this study; It is aimed to raise the awareness of producers in future production processes and to provide a stepping stone for scientific studies on this subject.
EN
The cultivation of energy crops is an important component of renewable bioenergy, which pursues the goal of reducing greenhouse gas emissions and determines the effective management of fertility and land use of marginal lands and disturbed areas of various nature. As a result of the conducted research, convincing relationships were established between the application of sewage sludge with a compensatory dose of mineral fertilizers and the productivity of grassy energy crops. The greatest increase in green mass is provided by the application of SS (SS – 40 t/ha + N10P14K58) for all studied crops. Applying sewage sludge with the addition of mineral fertilizers is an effective way to increase the productivity of green mass by 57–64% for such energy crops as Jerusalem artichoke, Silphium perfoliatum L, Miscanthus giganteus, and switchgrass (Panicum virgatum L).
EN
The fertilizer industry laboratory produces urea and ammonia nitrogen waste that can harm living things in the surrounding water bodies. Urea, nitrogen, and ammonia can be reduced by adsorption using activated carbon. This research reduced urea nitrogen and ammonia through activated carbon adsorption with a batch and continuous system. Percentage indicator of urea and ammonia nitrogen removal through Ammonia Nitrogen (NH3-N) and Chemical Oxygen Demand (COD) NH3-N and COD analysis was determined. This study aimed to obtain: 1) the percentage of NH3-N and COD reduction in stem batch; 2) the percentage of NH3-N and COD reduction in the continuous system; 3) the Freundlich and Langmuir isotherm adsorption equation against NH3-N wastewater. They are testing the adsorption power of activated carbon in a batch system using variable levels of activated carbon: 40 g/L, 55 g/L, 70 g/L, 85 g/L, and 100 g/L and testing the adsorption power of activated carbon in a continuous system using the variable frequency of wastewater in contact with activated carbon filter cartridges, namely 2, 3, 4, 5, and 6 times. The results showed: 1) in the batch system NH3-N reduction of 98.26–98.82% and COD reduction of 92.53–97.05%; 2) in continuous system reduction of NH3-N of 86.05–88.07% and COD reduction of 93.91–97.05%; 3) Freundlich isotherm adsorption equation yields constant R2 0.9464, n 0.4482, KF 0.0616 mg/g; while Langmuir’s isotherm adsorption equation yields constant R2 0.8684, b -0.1046 L/mg, and qm 7.9872 mg/g.
EN
Spatio-temporal assessment of the sustainability of agricultural landscapes over a long period (1892–2020 – 130 years) was carried out on the basis of archival spatial data for the territory of the Dnieper district of the Tauride province and modern data from the State Agency for Water Resources of Ukraine. Taking into account the historical patterns of the development of agriculture on the territory of the Dnieper district and the results of spatial modeling in 1892, territories with low (4.1 thousand hectares – 0.3% of the total area) and medium (310.3 thousand hectares – 23.8%) level of sustainability of agricultural landscapes, which are located in the lower reaches of the Dnieper, were identified. However, the large-scale development of the territory for agricultural land and the development of irrigated agriculture have led to the activation of land degradation processes, soil fertility and the deterioration of the stability of agricultural landscapes over large areas. As a result of spatial modeling, the state for 2020 in the irrigation zone recorded significant areas of agricultural land and adjacent territories with low (179.1 thousand hectares – 13.7% of the total area) and medium (419.0 thousand hectares – 32.1%) stability level. A comparative analysis of the stability of agrolandscapes for two time periods (1892 and 2020) showed that large-scale agricultural land development and an imbalanced land-use culture lead to constant and almost irreversible processes of reducing the stability of agrolandscapes in the areas of irrigation reclamation.
EN
After conducting research on energy Populus plants, it was discovered that biometric indicators and productivity were affected by both sowing density and nutritional background. The results showed that the tallest energy Populus shoots were observed in the group with a sowing density of 5600 pieces/ha, reaching heights of 11.1–11.6 m. The diameter of the central shoot in this variant was between 157 and 163 mm. The number of shoots was 1.8–2.5 pcs. on 1 plant and 21600–30000 pcs. on 1 hectare. The variant with a sowing density of 6700 units/ha yielded the most energy Populus biomass, specifically 178.3 tons of green mass and 100.9 tons of dry mass per hectare. Compared to the variant with a sowing density of 8300 units/ha, this represented an increase of 19.9 and 11.3 t/ha respectively, and an increase of 18.0 and 10.4 t/ha respectively, when compared to the variant with a sowing density of 5600 units/ha. The utilization of mineral fertilizers was shown to notably enhance productivity, as evidenced by an increase in green mass of 21.1–37.1 t/ha and an increase in dry mass of 11.2–20.6 t/ha across all trial variations. In the Precarpathian region, where sod podzolized soils are prevalent, the optimal sowing density of energy Populus biofuel was determined to be 6700 pcs./ha, with a yield of 110.990 kg/ha achieved through the application of mineral fertilizers. This approach generated an energy output of 1775.8 GJ/ha. In the case of a sowing density of 8300 units/ha and the use of mineral fertilizers, the energy output produced was 1576.9 GJ/ha, whereas sowing density of 5600 units/ha resulted in an energy output of 1591.0 GJ/ha. The introduction of mineral fertilizers led to an increase in energy output ranging from 12.3 to 22.6 GJ/ha for all experimental variants.
EN
The rapid, high increase in production costs and prices of mineral fertilizers leads to a reduction in their use by farmers, while fertilizer manufacturers consider the use of alternative raw materials and reducing the energy consumption of fertilizer production processes. Given these circumstances, special attention is warranted for suspension fertilizers. The manufacturing of suspension fertilizers is simplified and less energy intensive in comparison with solid fertilizers. This is achieved by omitting certain production stages such as granulation, drying, sifting, which usually contribute to more than half of the production costs. This paper presents the production procedure of suspension fertilizers tailored for cabbage cultivation, utilizing alternative raw materials such as sewage sludge ash and poultry litter ash. The final products are thoroughly characterized. The obtained fertilizers were rich in main nutrients (ranging from 23.38% to 30.60% NPK) as along with secondary nutrients and micronutrients. Moreover, they adhere to the stipulated standards concerning heavy metal content as outlined in the European Fertilizer Regulation. A distribution analysis has showed that suspension fertilizers contain nutrients in both liquid and solid phases. This arrangement facilitates their easy availability for plants and subsequent release upon dissolution in soil conditions. To assess process consistency, the production of the most promising fertilizer was upscaled. A preliminary technological and economic analysis was also conducted. The method of producing suspension fertilizers using alternative raw materials is a simple waste management solution offering nutrient recycling with the principles of circular economy. This approach not only encourages nutrient recycling but also curtails reliance on imported raw materials.
PL
W pracy scharakteryzowano obieg fosforu, azotu i węgla organicznego w biologicznej oczyszczalni ścieków, posiadającej komorę fermentacyjną oraz kompostownię. Oszacowano ilość biogenów jaką można hipotetycznie odzyskać w oczyszczalni ścieków o obciążeniu 70 tys. RLM. Technologie stosowane w oczyszczalni umożliwiają przetwarzanie odpadów organicznych i odzysk cennych dla gleby pierwiastków (fosfor, azot i węgiel organiczny) oraz energii. Wytwarzanie biogazu, przy maksymalnym wykorzystaniu odpadów organicznych generowanych przez mieszkańców, pozwala rocznie na odzysk 1126 Mg węgla organicznego i wygenerowanie ok. 12,6 GWh energii. Najbardziej racjonalną formą recyklingu organicznego odpadów jest wytwarzanie kompostu o parametrach nawozowych. Oszacowano, że produkcja nawozu umożliwia odzysk 30% węgla ,98% fosforu oraz 18% azotu ze strumieni tych pierwiastków wprowadzanych do oczyszczalni. W celu uzyskania kompostu o dobrych parametrach nawozowych niezbędne jest wdrożenie w regionie segregacji odpadów u źródła ich wytwarzania. Bardzo ważna jest również redukcja ilości koagulantów żelazowych, stosowanych w procesie oczyszczania ścieków do strącania związków fosforu, ze względu na to, że wzbogacają kompost w nieprzyswajalne formy fosforu w postaci fosforanu(V) żelaza(III). Z tego względu przedstawiono możliwość częściowego zastąpienia ich odpadową solą magnezu, co prowadzi do strącania dobrze przyswajalnego przez rośliny fosforanu magnezowo amonowego (struwitu). W pracy przedstawiono, w postaci schematu, cykl obiegu węgla, azotu i fosforu w oczyszczalni oraz opracowano arkusz kalkulacyjny, pozwalający na oszacowanie stopnia odzysku biogenów w kompoście, umożliwiający określenie produkcji wytwarzanej energii przez ilościowy dobór odpadów organicznych do fermentacji. Przedstawiono również zalety prowadzenia w oczyszczalni procesu oczyszczania ścieków, wspólnie z gospodarką odpadami organicznymi.
EN
The paper characterizes the circulation of phosphorus, nitrogen and organic carbon in a biological wastewater treatment plant (WWTP) with a digester and composting facility. The amount of nutrients that can be hypothetically recovered in a WWTP with a load of 70 000 P.E. was estimated. Technologies used in the treatment plant allow to process organic waste and recover valuable elements for the soil (phosphorus, nitrogen and organic carbon) and energy. The production of biogas, with the maximum use of organic waste generated by residents, allows the recovery of 1126 Mg of organic carbon annually and the generation of about 12.6 GWh of energy. The most rational form of organic waste recycling is the production of compost with fertilizer parameters. It has been estimated that the production of fertilizer makes it possible to recover 30% of carbon, 98% of phosphorus, and 18% of nitrogen from the streams of these elements entering the WWTP. In order to obtain compost with good fertilizing parameters, it is necessary to implement waste segregation at the source of its production. It is also very important to reduce the amount of ferric coagulants used in the wastewater treatment process to precipitate phosphorus compounds, due to the fact that they enrich the compost in the form of iron(V) phosphate(III), which is an unavailable form of phosphorus. Therefore, the possibility of their partial replacement by waste magnesium salt is presented, which leads to the precipitation of magnesium ammonium phosphate (struvite) well available by plants. The paper presents, in the form of a diagram, the cycle of the carbon, nitrogen and phosphorus cycles in the WWTP and develops a spreadsheet to estimate the extent of nutrient recovery in the compost, allowing the production of energy to be determined by quantitative selection of organic waste for fermentation. The advantages of running the wastewater treatment process together with organic waste management in the plant are also presented.
EN
The state of soils was presented in the aspect of environmental protection when using acidified slurry was used as fertilizer to protect ammonia from escaping into the atmosphere. The use of concentrated sulfuric acid to lower the pH of the slurry and thus retain nitrogen in the soil and then use it by crops gives a double benefit, reduces nitrogen losses, and reduces the cost of mineral fertilizers that should be purchased. Injecting raw slurry below the surface of the soil has some benefits in the form of reducing ammonia emissions, but it does not affect the use of fertilizers with the addition of sulfur, which is ensured in the case of acidification of the slurry. Additional benefit is to obtain environment protection. Leaching of elements from grassland and corn crop soil treated with raw cattle slurry and acidified cattle slurry (m3 ha-1) was presented. The K content was highest in the leachate collected after the application of the last batch of acidified slurry. Yield tests were conducted on similar soils as presented in the tables for grass, using six 500 m2 plots with corn, cultivar ES Cirrus, with acidified slurry and one test plot with non-acidified slurry. Analysis of variance and significant difference among the treatment means were separated using Duncan’s Multiple Range Test (DMRT) at a probability level of 0.05. Based on statistical analysis, it was demonstrated that crop yields of corn grain increased when fertilized with acidified slurry, at an average of 4 t·ha-1. During field tests corn crop yield varied from 14 t·ha-1 to 18 t·ha-1 when non-acidified and acidified slurry were used. The yield on the grassland was approx. 30 t·ha-1. The soil sorption complex, in combination with its buffer properties and acidification, did not affected the pH value. This makes the acidification process safe for plants and for the soil environment.
PL
W pracy przedstawiono badania na temat stanu gleby w aspekcie jej ochrony przy stosowaniu zakwaszonej gnojowicy jako nawozu chroniącego przed ulatnianiem się amoniaku do atmosfery. Zastosowanie stężonego kwasu siarkowego w celu obniżenia pH gnojowicy i zatrzymania w ten sposób azotu w glebie, a następnie wykorzystania go przez rośliny uprawne daje podwójną korzyść, zmniejsza straty azotu i obniża koszty zakupu nawozów mineralnych. Wtłaczanie gnojowicy surowej pod powierzchnię gleby przynosi pewne korzyści w postaci ograniczenia emisji amoniaku, ale nie wpływa na ograniczenie stosowania nawozów z dodatkiem siarki, co jest zapewnione w przypadku zakwaszania gnojowicy. Dodatkową korzyścią jest aspekt ochrony środowiska. W badaniach przedstawiono wymywanie pierwiastków z gleby na użytkach zielonych i uprawy kukurydzy przy stosowaniu niezakwaszonej gnojowicy bydlęcej oraz zakwaszonej gnojowicy bydlęcej (m3 ·ha-1). Zawartość K była największa w próbie po zastosowaniu ostatniej partii zakwaszonej gnojowicy. Doświadczenie z kukurydzą przeprowadzono na podobnych glebach jak w przypadku doświadczenia z trawami, na sześciu poletkach o powierzchni 500 m2 z odmianą ES Cirrus z zakwaszoną gnojowicą i poletkiem testowym z niezakwaszoną gnojowicą. Analizę wariancji i istotne różnice między średnimi zabiegów wykonano przy użyciu testu wielozakresowego Duncana (DMRT) na poziomie prawdopodobieństwa 0,05. Na podstawie analizy statystycznej wykazano, że plon ziarna kukurydzy wzrósł przy nawożeniu zakwaszoną gnojowicą średnio o 4 t·ha-1. Podczas badań polowych plon ziarna kukurydzy wahał się od 14 t·ha-1 do 18 t·ha-1, przy nawożeniu gnojowicą niezakwaszoną i zakwaszoną. Plon na użytkach zielonych wyniósł ok. 30 t·ha-1. Kompleks sorpcyjny gleby, w połączeniu z jego właściwościami buforowymi i zakwaszeniem, nie wpłynął na wartość pH. Dzięki temu proces zakwaszania jest bezpieczny dla roślin i środowiska glebowego.
EN
One of the most important fractions of soil organic matter which has significant environmental and agricultural importance is humus. The specific humus compounds of soil include the complex of amorphous organic humic substances which include humic acids, fulvic acids and humins. The effectiveness of the natural formation of active humic substances during composting processes depends on the chemical composition of organic residues and the environmental conditions influencing the development and activity of native microorganisms. The aim of the project was to build innovative composting boxes for chicken manure that allow to effectively obtain a fertilizer with the highest possible content of humic acids, by creating perfect and controlled conditions for the rapid development of indigenous thermophilic microorganisms and by combining it with the owned bio-acceleration technology. For perfect conditions (temperature, humidity, oxygen, pH) for the controlled growth of microorganisms, an algorithm of the dependence of the box operation parameters on the course of the biological process, was built. The product obtained after composting is an easily digestible complex organic fertilizer of brown-black colour, pH 7.5-8.0 and NPK 5:3:4 and a high content of native humic acids. Its use increases the growth of green mass of plants and improves soil fertility, which has been proved by the conducted pot research.
PL
Humus jest jedną z najważniejszych frakcji materii organicznej gleby, która ma istotne znaczenie dla środowiska i rolnictwa. Poszczególne składniki próchnicy obejmują grupę amorficznych substancji próchnicznych, w tym kwasy humusowe, fulwowe i huminy. Skuteczność naturalnego tworzenia się aktywnych substancji próchnicznych podczas procesu kompostowania zależy od składu chemicznego osadów organicznych i warunków środowiskowych, które mają wpływ na rozwój i aktywność natywnych mikroorganizmów. Celem projektu było zbudowanie innowacyjnych skrzyni kompostowych na odchody kurze pozwalające na skuteczne uzyskanie nawozu o możliwie najwyższej zwartości kwasów humusowych poprzez stworzenie idealnych i kontrolowanych warunków dla szybkiego rozwoju miejscowych mikroorganizmów termofilnych oraz poprzez połączenie ich z własną technologią bio-akceleracji. Dla uzyskania idealnych warunków (temperatura, wilgotność, tlen, pH) dla kontrolowanego wzrostu mikroorganizmów, stworzono algorytm zależności parametrów operacyjnych skrzyni. Produkt uzyskany w drodze kompostowania jest łatwo rozkładalnym złożonym nawozem organicznym o brązowo-czarnym kolorze, pH 7,5-8,0 oraz NPK 5:3:4 i wysokim poziomie natywnych kwasów humusowych. Jego zastosowanie pozytywnie wpływa na wzrost zielonej masy roślin i poprawia żyzność gleby, co zostało udowodnione przeprowadzonymi badaniami.
EN
Salvia sclarea L. is a commercially important crop from the Lamiaceae family, the raw material of which serves as a source of valuable essential oil. Effects of fertilizers, ploughing depth, time of sowing and row spacing on the productivity of nutmeg sage grown under conditions of drip irrigation were investigated in the field experiments conducted on meadow-chestnut residual-saline medium-loam soils of the southern Ukraine. It was found that time of sowing and fertilizer dose had a greater impact on the productivity of sage than row spacing and ploughing depth. Regarding the duration of S. sclarea L. cultivation, it was determined that within the first three years the inflorescence yield ranged from 9.98–10.62 t/ha, and in the fourth year – decreased by 6.8 times, amounting to 0.74–1.74 t/ha. The maximum productivity of the plant was achieved in the second year of cultivation during the winter sowing period with row spacing of 45 cm, ploughing depth of 28–30 cm and dose of N60P90 fertilizer of 15.01 t/ha. With the same ploughing depth and dose of N60P90 fertilizer, high level of productivity, 14.74 t/ha, was also achieved when row spacing of 70 cm was used. Application of mineral fertilizers at doses similar to N60P90 under the main tillage during winter sowing period resulted in 51.1 kg/ha and 51.3 kg/ha yields of essential oil in the first and second years of cultivation, respectively. In the third and fourth years, the yields dropped to 33.3 kg/ha and 8.7 kg/ha or by 35.1% and 83.0%, respectively. During spring sowing period, the yield of essential oil was in the range of 19.2–24.6 kg/ha in the first three years, but in the fourth year – decreased to 6.5 kg/ha or by 73.6%. Therefore, to obtain inflorescence yield of nutmeg sage at the level of 14.5–15.0 t/ha with essential oil yield of 51.0 kg/ha in arid climates, it is recommended to use drip irrigation, row spacing of 45 cm, ploughing depth of 28–30 cm, fertilizer at a dose of N60P90 and sowing time in the first ten-day period of December (winter period).
EN
The use of biodestructors in agricultural technologies for efficient decomposition of crop residues affects the number and species composition of soil fungi, especially pathogenic species, and as a consequence, plant productivity. However, to date, this issue has not been extensively studied. The purpose of this experiment was to develop an effective method of destruction of post-harvest residues using biological products to realize the productive potential of soybeans in rice crop rotation. The work was conducted on the experimental plots of the Institute of Rice NAAS (Skadovsk district, Kherson region, Ukraine) during 2016–2018. In the experiment, the treatment of post-harvest rice residues with a biodestructor Biocomplex-BTU "Ecostern" (1 l/ha) in combination with concentrated amide water-soluble fertilizer, carbamide (30 kg/ha) was carried out in autumn. Application of carbamide alone (30 kg/ha) was used as a control. "Ecostern" is a concentrated agent, which comprises antagonists of pathogenic microorganisms as well as fungi and bacteria that accelerate decomposition of plant residues. The application of biodestructor Biocomplex-BTU "Ecostern" (1 l/ha) in combination with carbamide increased the total number of pathogenic and saprotrophic fungi in the soil from 65.5 to 80.5 thousand /g of soil or by 22.9%. However, the content of pathogenic microflora under this condition was 21.8% lower compared to the control (30 kg/ha carbamide), and the number of saprotrophs increased 3.3-fold. Following the combined use of biodestructor "Ecostern" and carbamide, the number of antagonist fungi has doubled, while the number of toxin-forming fungi decreased by 9.4%. The yield of soybeans also increased by 0.6 t/ha or by 17.9% compared to the control. The increase in yield was observed due to the higher standing density of plants and the number of beans per plant. Before the harvest, the standing density of soybean plants was 45 pcs/m2, which is 9.7% higher than the control (41 pcs/m2), due to the high level of field germination of seeds. The number of beans was 24 and 28 pieces per plant, exceeding the control by 16.7%, and the weight of 1000 grains was 156.2 g and 157.5 g, which is 0.8% than the control.
EN
The present investigation was aimed at enhancing the quality and productivity of barley by the fertilizer and chitosan application. The field experiments were conducted in the northern region of Jordan, under the rain fed conditions in the main growing seasons of 2014/2015 and 2015/2016. The experiment was conducted in a well-designed split-plot having three replications and two fertilizer levels (0 and 100 kg•ha-1 DAP (Diammonium phosphate 46% P2O5). Chitosan, in three different concentrations (0, 5, and 10 g•L-1), was randomly applied to all fertilized plots as subplot treatments. The results revealed the highest seed dry weight (5.8 g per plant) in the plants treated with 100 kg•ha-1 of DAP, while the lowest (5.2 g per plant) was recorded in the control which exhibited an increase of about 10%. However, other parameters, namely the number of grains, number of spikes, and number of grains were also found to be influenced by the chitosan treatment. Significant variation (P < 0.01) were also high between the lines in the presence and absence of chitosan application. The highest number of grain yield, number of spikes, and grains/spike were found by the foliar treatment of 10 g•L-1 chitosan to barley plants at the tillering stage. Similarly, the grain quality, particularly with respect to protein and starch, was found to be enhanced significantly over control. The highest protein (12.6%) and starch (62.3%) were obtained with 100 kg•ha-1 DAP fertilizer level mixed with 10 g•L-1 chitosan. Hence, based on results, it can be concluded that the fertilizer level 100 kg•ha-1 DAP combined with 10 g•L-1 chitosan is economically best and recommendable for improving the quality and productivity of barley in the northern region of Jordan.
PL
Azot jest kluczowym makroelementem, niezbędnym do prawidłowego funkcjonowania wszystkich organizmów żywych. Choć występuje w powietrzu atmosferycznym w nieograniczonej ilości w stosunku do zapotrzebowania biosfery na ten składnik (78,09% objętości powietrza), to większość organizmów żywych nie jest zdolna do jego przyswajania…
14
Content available remote Magnezyt jako źródło magnezu dla roślin
PL
Przedstawiono wyniki badań przyswajalności magnezu zawartego w nawozach mineralnych oferowanych przez krajowe wytwórnie, przyjmując za miarę przyswajalności rozpuszczalność w wodzie oznaczoną zgodnie z Rozporządzeniem WE. Badania przeprowadzono dla próbek nawozów zawierających magnez, a także próbek rozdrobnionych minerałów magnezowych, do których dodano azotan amonu, siarczan amonu, fosforan monoamonowy lub nawozy typu NPK, które nie zawierały magnezu. Uzyskane wyniki pozwalają na ocenę wpływu sposobu wytwarzania nawozu i jego składu na przyswajalność magnezu zawartego w nawozach.
EN
Bioavailability of Mg contained in Polish mineral fertilizers was studied by detn. of its soly. in water. For comparison Mg-free NH4NO3, (NH4)2SO4 and NPK fertilizers-contg. fragmented carbonate minerals were also studied. The numerical data were tabula
EN
The fertilizer management is one of the greatest challenges of agriculture in the 21st century. The growing demand for food, along with the similar amount of arable land, creates the necessity of increasing the crop yields in a given area. Due to the fact that the production and use of mineral fertilizers often influence the environment in a negative way, for many years more attention has been paid to natural and organic fertilizers. Their advantage is the transfer of not only organic matter but also nutrients to the soil. In connection with the structural changes in agriculture, the production of natural fertilizers, especially manure decreases, but at the same time, the production of other organic fertilizers, e.g. composts or biochar increases. The aim of the work was to present the possibility of using biochar in the production of organic fertilizers. Moreover, the project concept for obtaining an organic fertilizer containing biochar and its application in the processes of biological transformation of waste was presented.
EN
Beach wrack is a unique issue. It is both an ecological problem for the eutrophicated reservoirs such as the Baltic Sea and the social one associated with nuisance for inhabitants and tourists visiting seaside resorts. This generates a problem for the institutions responsible for beach management (local authorities). Nowadays local authorities generally leave cleaning the beach to local companies and it is not known how the beach wrack material is utilized. According to the current trend, the nuisance of beach wrack should be turned into a resource that will bring benefits. In order to understand what beach wrack really is, it is necessary to establish a specific definition. The material washed out by the sea contains not only the natural substances of organic origin, but also human products: plastics, glass or metals, which in many cases forces to pre-select before using the technology. Good treatment of material the quantities of which are undefined and the occurrence is variable, constitutes a real challenge. The beach wrack processing on reed bed system, so far used mainly for the treatment of sewage sludge, seems to be a good idea. It is an innovative technology that is expected to have similar results as for the processing of sewage sludge from wastewater treatment, i.e. a high nutrient fertilizer. In accordance with European Union recommendations, the possible use of beach wrack as a fertilizer in agriculture or enrichment of compost, will close the circulation of organic matter in environment, thus entering the reed bed system into a circular economy. Many aspects related to the reed bed system favor the use of this technology in the practical processing of marine organic waste.
EN
Optimization of the biodegradable wastes management is one of the main goals of the activities taken up in the European Union. The aim of the present paper is to define the possibilities of supporting the process of golden rod yield (Solidago canadensis L.) by using different mineral-organic fertilizers, in a form of granulated substances, produced from extracted coffee wastes (CSG) as well as from ash which is the result of woody biomass combustion. Golden rod, as a potential energetic plant, is very easy to grow because it covers the grounds which are not utilized agriculturally or the ones localised in the close neighbourhood of industrial areas. For certain experimental purposes, a field experiment was conducted. Six experimental plots constituted its basis, two experimental fertilizers based on the extracted coffee wastes (in the amount of 100g/m2), ash from the process of thermal biomass transition and two commercial fertilizers were applied. After 160 days of the experiment, the golden rod harvest was submitted to quantitative-qualitative analysis. An analysis of basic soil parameters (pH, EC, TOC) was also carried out and the content of significant elements, as far as fertilizers are concerned, N, P, K, Ca, Mg was analysed too. As a result of the conducted experiment, the yield rise was observed, both in the case of the plants fed with commercial fertilizers as well as the ones cultivated on the basis of the extracted wastes. Using fertilizers does not only allow for management of the wastes produced in farm areas but also enables to increase the achieved amount of golden rod crops as well as to boost energy that is sourced in the process of biomass used for energetic purposes.
EN
In this study, we have determined the main important physical and chemical properties of municipal sewage sludge and compared them to the requirements of the Finnish Fertilizer Product Act and Fertilizer Product Decree in order to assess the potential utilization of this by-product as a fertilizer. Except for Hg (1.4 mg/kg d.m.), the total concentrations of Cd, Cu, Ni, Pb, Zn, Cr and As in our sewage sludge were lower that the Finnish maximum permissible heavy metal concentrations for sewage sludge used as a fertilizer products. However, the sewage sludge may be utilized as a soil improver, a growing media or as a fertilizer product in landfill sites (e.g. surface structures) or in other closed industrial areas, because the above mentioned Finnish limit values are not applied at these sites. If the sewage sludge is to be utilized in these kinds of areas, an environmental permit may be needed. According to BCR-extraction, the lowest release potential (solubility) from the sample matrix was observed for sulphur (58.4 %) and the highest for Cd (100 %).
PL
Wzrost liczby ludności spowodował zwiększenie areału pól uprawnych, wprowadzenie nowych gatunków roślin, a także zubożenie gleb, co doprowadziło do rozwoju przemysłu nawozów makro- i mikroelementowych. Mikroelementy podawane w postaci chelatów charakteryzują się większym pobieraniem zastosowanego składnika, ułatwiają ich przemieszczanie się w roślinie, przez co charakteryzują się szybszym i skuteczniejszym działaniem, nawet w warunkach ograniczonej wilgotności. Struktura kleszczowa, którą tworzą, zapewnia trwałość oraz stabilizację mikroelementu. W Rozporządzeniu nawozowym opisano 13 związków należących do związków aminopolikarboksylowych (APCAs). Ligand z grupy APCA reaguje z mikroelementami w stosunku molowym 1:1, jest dobrze rozpuszczalny w wodzie, stabilizuje mikroelement w szerokim zakresie pH oraz zapewnia wysoki stopień skompleksowania. Nawozy takiego typu są 2-5 razy efektywniejsze niż nieorganiczne sole siarczanowe. Wysoki stopień pobrania składnika pokarmowego pozwala zmniejszyć dawkowanie nawozów, co minimalizują także niekorzystne wpływy na środowisko. Zastosowanie chelatów umożliwia stworzenie preparatu zawierającego jeden lub kilka składników występujących w małej ilości w roztworze glebowym. Celem pracy jest analiza właściwości fizykochemicznych wybranych chelatów stosowanych w przemyśle nawozowym.
EN
Causes of population growth include increasing the area of arable land, the introduction of new species of plants and soil depletion, which led to the development of the fertilizer industry macro- and micronutrients. Micronutrients in the form of chelates have a greater collection trace element, facilitate the movement of the plant, which are characterized by faster and more efficient operation, even under conditions of reduced humidity. The tick structure which is formed provides durability and stabilization of the micronutrient. The Regulation of the European Parliament and of the Council EC No 2003/2003 of 13 October 2003 is described 13 compounds belonging to the aminopolycarboxylic group (APCAs). Ligand from the group APCA reacts with trace elements in a molar ratio of 1:1, is highly soluble in water, stabilized trace element in a wide range of pH and a high degree of complexation. This type of fertilizer are 2-5 times more efficient than inorganic sulfate salts. The high degree of nutrients uptake can reduce the dosage of fertilizers, which minimize the adverse effects on the environment. The use of chelates allows the creation of a preparation comprising one or more microelements occurring deficiency. The aim of the study is to analyze the physicochemical properties of selected chelates used in the fertilizer industry.
PL
Chelaty mikroelementowe znajdują coraz częściej zastosowanie w produkcji nawozów płynnych i drobnokrystalicznych. Ligandy o właściwościach chelatujących pozwalają stabilizować mikroskładnik w szerokim zakresie pH oraz zapewniają lepszą i skuteczniejszą przyswajalność. Związki należące do grupy aminopolikarboksylowych (APCAs) stosowane są w produkcji nawozów. Najczęściej wykorzystywana jest sól sodowa kwasu etylenodiaminotetra octowego (EDTA). Związek ten zaliczany jest do substancji niebiodegradowalnych. Jego wysokie stężenie występuje w środowisku nawet po 15 latach i może powodować remobilizację metali dennych i rzecznych, eutrofizację wód, a w konsekwencji wprowadzenie metali ciężkich do łańcucha pokarmowego. Wpływ na środowisko naturalne określa się poprzez czas rozkładu związku pod wpływem mikroorganizmów. Stopień biodegradacji wyznacza się metodą testu statycznego i kinetycznego. W obu metodach istotna jest jakość zastosowanego osadu czynnego pobieranego z oczyszczalni ścieków. Celem badań było określenie właściwości fizykochemicznych osadu czynnego pobranego bezpośrednio z komór napowietrzających w oczyszczalni ścieków oraz modyfikacja sposobu hodowli osadu w taki sposób, by umożliwić wykorzystywanie go do badań biodegradacji chelatów nawozowych.
EN
Microelement chelates are increasingly being used in the production of liquid fertilizers and fine crystal. Ligands for chelating properties allow to stabilize trace elements in wide range of pH and provide better and more efficient assimilation. The compounds belonging to aminopolycarboxylic group (APCAs) are used in fertilizer production. Most commonly used is the sodium salt of ethylenediaminetetraacetic acid (EDTA). This compound is one of the substances, which are not biodegradable. High concentrations found in the environment even after 15 years and may cause remobilization of metal from river bottom, eutrophication and consequently, the introduction of heavy metals into the food chain. Impact on the environment is determined by the time distribution of the compound under the influence of microorganisms. The degree of biodegradation is determined by static and kinetic test. In both methods, it is important quality of the used activated sludge taken from wastewater treatment plants. The aim of the study was to determine the physicochemical properties of the activated sludge downloaded directly from the aeration chambers in sewage treatment plant and modification of breeding activated sludge in such a way as to allow use it to research fertilizer chelate biodegradation.
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